Hojo Soun, now going by the name of Ise Shinkuro, had become rather lethargic after realising the modern world was just too big to conquer. She is sent to attend high school with her housemate, Jun Takahashi, but has a bit of trouble fitting in at first. However, thanks to her smarts and her willingness to stand up for others, she soon starts to become popular with the other students. When she notices some bullies, she decides she wants to take down their leader. As Shinkuro feels taking down the leader was too easy, Jun, in a bid to keep her interested in going to school, makes up a lie that there may be more leaders higher up the table. Meanwhile, some other generals plot to make use of Shinkuro.